CN106468592B - Pass through the method and apparatus of noise testing - Google Patents
Pass through the method and apparatus of noise testing Download PDFInfo
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- CN106468592B CN106468592B CN201510507151.0A CN201510507151A CN106468592B CN 106468592 B CN106468592 B CN 106468592B CN 201510507151 A CN201510507151 A CN 201510507151A CN 106468592 B CN106468592 B CN 106468592B
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- runway
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Abstract
The invention discloses a kind of method and apparatus by noise testing.This method includes the runway for increasing by least one hole shape structure in test site；And vehicle passes through along the running on track, reads sound by the microphone being arranged symmetrically in except the runway, wherein having eliminated the tyre noise propagated via the past vehicle exterior domain that the runway blocks.It is of the present invention convenient and efficient by noise testing method, there is biggish versatility.
Description
Technical field
The present invention relates to devices used in a kind of method and this method by noise testing.
Background technique
Now, accelerate constantly to mention by the increasingly stringent and customer of noise level limit to what interior sound and vibration comfort required outside vehicle
Height, the new energy technologies such as being showing improvement or progress day by day of engine technology, fuel cell become increasingly popular extensive use, and tyre noise becomes vehicle
It influences to meet outside vehicle vehicle through one of most important noise source of legislations for noise requirement under road running mode.By making an uproar
The general layout of sound test is as shown in Figure 1, center line 3 ' of the vehicle 2 ' along place gives it the gun or drive at a constant speed, the Mike of test
Wind 1 ', 4 ' is arranged on the line perpendicular to center line 3 ', and distance center line 3 ' is 7.5m, terrain clearance 1.2m, test site
Whole region is smooth bituminous pavement 5 ', and as shown in the road surface sectional view of Fig. 2, the base on road surface is concrete 6 '.Due to vehicle
Wheel is needed to run at high speed under steam, it is difficult to effectively shield tyre noise, obtain more pure power assembly noise, pass
Dynamic system and Induction and exhaust noises, and then realize the accurate decomposition of the main noise source of vehicle.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of methods by noise testing, can pass through noise outside decontamination chamber
Tyre noise in test.
Method of the present invention by noise testing comprising increase by least one hole shape structure in test site
Runway；And vehicle passes through along runway enforcement, reads sound by the microphone being arranged symmetrically in except the runway,
The tyre noise propagated via the past vehicle exterior domain that the runway blocks wherein is eliminated.
In the method above by noise testing, the runway has two, is respectively provided with the smooth road of low-noise characteristic
With the road surface side wall of sound absorption characteristics.
In the method above by noise testing, vehicle is equipped with the bare headed tread contacted with the smooth road of the runway
Tire.
In the method above by noise testing, the runway has smooth cement pavement and bituminous pavement side wall.
In the method above by noise testing, two runways can be filled by two road surface blocks, the road surface block tool
Have with the consistent road surface in test site road surface and maintains the complete of test site after filling.
In the method above by noise testing, in the complete situation of test site, equipped with the vehicle of normal tire
Pass through along another two runways with runway offset certain distance L, by being arranged symmetrically in except another two runways
Microphone reads sound, and the microphone position after the microphone position and the road surface block remove deviates same distance
L, the height of the microphone improve the height of a road surface block thickness h than the microphone height after road surface block removal.
It is of the present invention convenient and efficient by noise testing method, there is biggish versatility, can pass through outside decontamination chamber
Tyre noise in noise testing, because eliminating tyre noise, to obtain more pure power assembly noise, power train
And Induction and exhaust noises, and then realize the accurate decomposition of the main noise source of vehicle.
The invention further relates to a kind of devices by noise testing.The device includes: place, and the place includes at least one
The runway of item hole shape structure；And it is arranged symmetrically in except the runway and reads sound when vehicle passes through along the running on track
The microphone of sound；Wherein the runway has the smooth road of low-noise characteristic and the road surface side wall of sound absorption characteristics, to block
The tyre noise that the past vehicle exterior domain of vehicle is propagated.
In the device by noise testing, the runway has two, is respectively provided with bituminous pavement side wall and and vehicle
Be equipped with bare headed tread tire interface smooth cement pavement.
In the device by noise testing, two runways can be filled by two road surface blocks, the road surface block
With maintaining the complete of place with the consistent road surface in place road surface and after filling.
In the device by noise testing, the road surface block filling in the case where, the place further include with
It is another to correspond to this for passing through equipped with the vehicle of normal tire along it for another two runways of the runway offset certain distance L
Microphone position after the position of the microphone of two runways and the road surface block remove deviates same distance L, the Mike
The height of wind improves the height of a road surface block thickness h than the microphone height after road surface block removal.
Through the following detailed description with reference to the accompanying drawings, other aspects and features of the present invention become obvious.But it should know
Road, which is only the purpose design explained, not as the restriction of the scope of the present invention, this is because it should refer to
Appended claims.It should also be noted that attached drawing is merely intended to conceptually illustrate structure and process described herein, unless in addition
It points out, it is not necessary to scale attached drawing.
Detailed description of the invention
In conjunction with attached drawing refering to the detailed description of following specific embodiments, present invention will become more fully understood, in attached drawing
Same reference numbers refer to same element in view always.Wherein:
Fig. 1 is the place General Arrangement for passing through noise testing in the prior art；
Fig. 2 is the road surface sectional view in place in the prior art；
Fig. 3 is the schematic diagram of the present invention by noise-measuring system when carrying out normal through noise testing；
Fig. 4 is the sectional view shown in Fig. 3 looked over by noise-measuring system from rear side；
Fig. 5 is the schematic diagram of the present invention by noise-measuring system when carrying out elimination tyre noise；
Fig. 6 is the sectional view shown in fig. 5 looked over by noise-measuring system from rear side；And
Fig. 7 is the schematic diagram shown in fig. 5 for carrying out eliminating bare headed tread tire provisioned in vehicle when tyre noise is tested.
Specific embodiment
To help those skilled in the art that can definitely understand claimed theme, with reference to the accompanying drawing
It describes the specific embodiments of the present invention in detail.
The structural schematic diagram of device of the present invention by noise testing is passing through noise as shown in Fig. 3~Fig. 7
In normal place, two special runways 10 and 11 are increased, wherein runway 11 is to occupy place center, and with place center
Line 3 is symmetry axis.This two runways 10 and 11 be characterized in that they in parallel with two normal runways, and with it is normal
Runway 12 and another normal runway offset distance L not shown in the figure；In addition, as shown in fig. 6, it is respectively to be with a thickness of h(
0.08m~0.12m or so) oblong openings section cheat shape structure, be below concrete 6 build smooth cement pavement 19
With 20, both sides are bituminous pavement side wall, and usually the rectangle tunnel is filled by removable smooth bituminous pavement block 16 and 17
(as shown in Figure 4), so as to keep the consistency of the integrality in entire test site region and the acoustical behavior on road surface.Microphone
Positional symmetry in normal runway or cheat except the special runway 19 and 20 of shape structure at a certain distance from, in vehicle from runway
Sound is read when driving through.
When normally pass through noise testing when, as shown in Figure 3 and Figure 4, vehicle 2 along place center line 3(in sectional view figure
Corresponding center line is 14) to give it the gun or drive at a constant speed in 4, and the microphone of test is 1 and 4, they are at distance center line 3
7.5m, terrain clearance 1.2m.Test runway at this time be normal runway 12(its with line 9 for symmetry axis, line 9 is in sectional view Fig. 4
In corresponding line be the downside of runway 11 13) and in Fig. 3 region (not shown in figure with label), region involved by runway is smooth
Bituminous pavement 5.The special runway 10 and 11 of two at this time is filled (such as by removable smooth bituminous pavement block 16 and 17
Shown in Fig. 4), to keep entirely from the consistency of the acoustical behavior of the integrality and road surface in test site region.Pass through at this time
In noise testing, vehicle is equipped with normal product tire 15.
When passing through noise testing of tyre noise is removed when carrying out, as shown in Fig. 5~Fig. 7, road surface block 16 and 17 is removed,
Along reference line 9(, the corresponding center line in sectional view Fig. 6 is 13) to give it the gun or drive at a constant speed to vehicle 2, two side wheels of vehicle
Tire can pass through from the runway 10 and 11 of hole shape structure.The distance reference of microphone 7 and 8 line 9 of test is 7.5m, that is,
It says, the corresponding position of microphone 7 and 8 also wants deviation distance L；The terrain clearance of microphone 7 and 8 is (1.2-h) m(microphone
Height reduces h, and the height for offsetting vehicle reduces h, to keep microphone relative to the power assembly of vehicle, power train and into row
The consistency of the sound sources distance such as gas), the region that test runway at this time is 10 and 11, i.e., vehicle driving is than normal smooth drip
On the smooth cement pavement tunnel road surface 19 and 20 of the low h in green road surface 5.At this time by noise testing, vehicle be equipped with it is normal
The identical bare headed tread tire 18(, that is, no tread tire of the specification and model of product tire 15, as shown in 18 in Fig. 7).It utilizes
Bare headed tread tire is blocked in the low-noise characteristic of smooth cement pavement and the sound absorption characteristics and acoustics of tunnel bituminous pavement side wall
Function, realize to tyre noise toward vehicle exterior domain propagate it is effective blocking and elimination, thus in testing obtain vehicle on compared with
For pure power assembly noise, power train and Induction and exhaust noises.
Test method according to the present invention and device use summarize as shown in table 1.
Method of the present invention by noise testing, it is intended to obtain the expected noise for eliminating tyre noise, i.e., from
Tyre noise is decomposed in noise.The runway that can be filled as described above by road surface block is set, it is low due to its smooth cement pavement
The sound absorption characteristics of noise characteristic and bituminous pavement side wall can effectively block tire when vehicle, which is equipped with bare headed tread tire, to be passed through
The tyre noise that noise is propagated toward vehicle exterior domain.When road surface block filling after, due to restored the integrality of entire test site with
And the consistency of road surface acoustical behavior, equipped with same size and model and the vehicle that has tread tire pass through after can get
Noise containing tyre noise.Therefore, skilled artisan will understand that, design according to the present invention can also be in place
The runway of one hole shape structure of middle setting, which is about the size between the tire of vehicle two sides, and road surface is still
Smooth cement pavement, side wall are still bituminous pavement side wall, and vehicle can once pass through along runway.The runway has drip by one piece
The road surface block on green road surface, still can normally be passed through noise testing after filling.Certainly, according to above-mentioned design, if needed
If, those skilled in the art are also it is contemplated that setting one hole shape runway as described above, the wheel of vehicle side is eliminated with realization
Tire noise.
Although being illustrated in detail and having described specific embodiments of the present invention to illustrate the principle of the present invention, it should be understood that
, the present invention can be with embodied in other without departing from such principle.
Claims (10)
1. a kind of method by noise testing, it is characterized in that:
In test site increase by least one hole shape structure runway, the runway have low-noise characteristic smooth road and
The bituminous pavement side wall of sound absorption characteristics；And
Vehicle passes through along the running on track, sound is read by the microphone being arranged symmetrically in except the runway, wherein
Eliminate the tyre noise propagated via the past vehicle exterior domain that the runway blocks.
2. the method according to claim 1 by noise testing, it is characterized in that: the runway has two.
3. the method according to claim 2 by noise testing, it is characterized in that: vehicle is equipped with the light with the runway
The bare headed tread tire of ways face contact.
4. the method according to claim 2 by noise testing, it is characterized in that: the runway has smooth cement road
Face.
5. the method according to claim 2 by noise testing, it is characterized in that: two runways can be by two road surfaces
Block filling, the road surface block has maintains the complete of test site with the consistent road surface in test site road surface and after filling
It is whole.
6. the method according to claim 5 by noise testing, it is characterized in that: in the complete situation of test site,
Pass through equipped with the vehicle of normal tire along another two runways with runway offset certain distance L, by being arranged symmetrically in
Microphone except another two runways reads sound, the microphone behind the microphone position and road surface block removal
Position deviates same distance L, and the microphone height after the height of the microphone is removed than the road surface block improves an institute
State the height of road surface block height h.
7. a kind of device by noise testing, it is characterized in that including: place, the place includes at least one hole shape structure
Runway；And be arranged symmetrically in except the runway vehicle along the running on track by when read sound microphone；
Wherein the runway has the smooth road of low-noise characteristic and the bituminous pavement side wall of sound absorption characteristics, to block the past of vehicle
The tyre noise that vehicle exterior domain is propagated.
8. the device according to claim 7 by noise testing is respectively provided with it is characterized in that: the runway has two
The smooth cement pavement for the bare headed tread tire interface being equipped with vehicle.
9. the device according to claim 7 by noise testing, it is characterized in that: the runway has two, by Liang Tiaolu
The filling of face block, the road surface block has maintains the complete of place with the consistent road surface in place road surface and after filling.
10. the device according to claim 9 by noise testing, it is characterized in that: the case where the road surface block is filled
Under, the place further includes another two runways with runway offset certain distance L for the vehicle equipped with normal tire
Pass through along it, the microphone position after the position of the microphone corresponding to another two runways is removed with the road surface block is inclined
Phase shift same distance L, microphone height one road surface block of raising after the height of the microphone is removed than the road surface block are thick
Spend the height of h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510507151.0A CN106468592B (en) | 2015-08-17 | 2015-08-17 | Pass through the method and apparatus of noise testing |
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| CN201510507151.0A CN106468592B (en) | 2015-08-17 | 2015-08-17 | Pass through the method and apparatus of noise testing |
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| CN106468592A CN106468592A (en) | 2017-03-01 |
| CN106468592B true CN106468592B (en) | 2019-04-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11938938B2 (en) | 2018-07-03 | 2024-03-26 | Bridgestone Corporation | Tire noise test method, vehicle and control device |
| JP7189525B2 (en) * | 2018-07-17 | 2022-12-14 | 株式会社ブリヂストン | Driving control device, driving control system, driving control method, tire testing device, and tire testing method |
| CN109855722B (en) * | 2018-12-27 | 2021-03-16 | 四川轮胎橡胶（集团）股份有限公司 | Method for testing outdoor passing noise of tire |
| CN109916506B (en) * | 2019-04-18 | 2020-12-18 | 中国第一汽车股份有限公司 | Commercial vehicle passing noise rapid measurement system and measurement method |
| CN110907192B (en) * | 2019-11-18 | 2021-05-11 | 东风商用车有限公司 | Method for reducing passing noise of whole vehicle |
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| CN101038698A (en) * | 2006-03-14 | 2007-09-19 | 上海大众汽车有限公司 | Date collecting method for measuring automobile external noise |
| CN102445266A (en) * | 2010-10-15 | 2012-05-09 | 重庆大学 | Automobile outfield pass-by-noise source recognition system and method |
| CN102587233A (en) * | 2011-01-14 | 2012-07-18 | 交通运输部公路科学研究所 | Pavement music generating method |
| CN102680077A (en) * | 2012-04-01 | 2012-09-19 | 中国汽车技术研究中心 | Outside noise quick measurement system during vehicle acceleration |
| CN204514610U (en) * | 2015-03-12 | 2015-07-29 | 上海通用汽车有限公司 | For the tire noise-abatement equipment of chassis interior dynamometer machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3660335B2 (en) * | 2002-10-10 | 2005-06-15 | 株式会社栗本鐵工所 | Noise barrier for railway |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038698A (en) * | 2006-03-14 | 2007-09-19 | 上海大众汽车有限公司 | Date collecting method for measuring automobile external noise |
| CN102445266A (en) * | 2010-10-15 | 2012-05-09 | 重庆大学 | Automobile outfield pass-by-noise source recognition system and method |
| CN102587233A (en) * | 2011-01-14 | 2012-07-18 | 交通运输部公路科学研究所 | Pavement music generating method |
| CN102680077A (en) * | 2012-04-01 | 2012-09-19 | 中国汽车技术研究中心 | Outside noise quick measurement system during vehicle acceleration |
| CN204514610U (en) * | 2015-03-12 | 2015-07-29 | 上海通用汽车有限公司 | For the tire noise-abatement equipment of chassis interior dynamometer machine |
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| CN106468592A (en) | 2017-03-01 |
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